/* Modern Dark Theme Design Variables */
:root {
  /* Dark Theme Colors */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #151515;
  --surface-primary: #1a1a1a;
  --surface-secondary: #2a2a2a;
  --surface-tertiary: #3a3a3a;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-tertiary: #808080;
  --text-muted: #666666;
  
  /* Brand Colors - SuDu.Ai Green Theme */
  --accent-color: #4a8c5c;
  --accent-hover: #2d5a3d;
  --accent-gradient: linear-gradient(135deg, #2d5a3d 0%, #4a8c5c 50%, #66b377 100%);
  --primary-color: #4a8c5c;
  --success-color: #34C759;
  --warning-color: #FF9500;
  --error-color: #FF3B30;
  
  /* Border & Divider */
  --border-color: #333333;
  --border-subtle: #2a2a2a;
  --divider-color: #444444;
  
  /* Shadows & Effects */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 24px 0 rgba(0, 0, 0, 0.6);
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 50rem;
  
  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden; /* Prevent body scroll */
  margin: 0;
  padding: 0;
}

/* Mobile-First Header */
.header {
  background: var(--bg-primary);
  padding: var(--space-md) var(--space-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-subtle);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
}

.menu-btn,
.logout-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.menu-btn:hover,
.logout-btn:hover {
  background: var(--surface-secondary);
}

.logout-btn:hover {
  color: var(--error-color);
}

.header-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex: 1;
  justify-content: center;
}

.header-title h1 {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.dropdown-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-btn:hover {
  color: var(--text-primary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  margin-right: var(--space-xs);
}

.status-dot.connected {
  background: var(--success-color);
}

.status-dot.disconnected {
  background: var(--error-color);
}

.status-dot.connecting {
  background: var(--warning-color);
  animation: pulse 2s infinite;
}

/* Main Container */
.container {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 0;
  overflow: hidden;
}

/* Chat Container */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  min-height: 0;
  overflow: hidden;
}

/* Empty State */
.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 200px;
}

.app-logo {
  opacity: 0.3;
  color: var(--text-tertiary);
}

.app-logo svg {
  filter: drop-shadow(0 0 20px rgba(128, 128, 128, 0.3));
}

/* Quick Actions */
.quick-actions {
  display: flex;
  gap: var(--space-md);
  padding: 0 var(--space-lg);
  margin-bottom: var(--space-lg);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex-shrink: 0;
}

.quick-actions::-webkit-scrollbar {
  display: none;
}

.quick-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--surface-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 120px;
  text-align: center;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
}

.quick-action-btn:hover {
  background: var(--surface-secondary);
  border-color: var(--border-color);
  transform: translateY(-2px);
}

.quick-action-btn svg {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.quick-action-btn:hover svg {
  color: var(--accent-color);
}

/* Chat Input Container */
.chat-input-container {
  padding: var(--space-lg);
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.input-wrapper {
  position: relative;
  margin-bottom: var(--space-md);
}

.input-wrapper input {
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  padding-right: 60px;
  background: var(--surface-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: all var(--transition-fast);
}

.input-wrapper input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(74, 140, 92, 0.2);
}

.input-wrapper input::placeholder {
  color: var(--text-muted);
}

.attach-btn {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.attach-btn:hover {
  color: var(--text-primary);
  background: var(--surface-secondary);
}

/* Action Buttons */
.action-buttons {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--surface-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-btn:hover {
  background: var(--surface-secondary);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

.voice-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--surface-primary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.voice-btn:hover {
  background: var(--accent-color);
  color: var(--text-primary);
  border-color: var(--accent-color);
  transform: scale(1.05);
}

.voice-btn.recording {
  color: #ff4d4d; /* A red color to indicate recording */
  background-color: var(--primary-color-dark);
  animation: pulse 1.5s infinite;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  scroll-behavior: smooth;
  min-height: 0;
}

.chat-messages::-webkit-scrollbar {
  display: none;
}

/* Message Styles */
.message {
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  animation: messageSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  word-wrap: break-word;
  line-height: 1.5;
  max-width: 85%;
  position: relative;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.message.user {
  background: var(--accent-color);
  color: var(--text-primary);
  align-self: flex-end;
  margin-left: auto;
  border-bottom-right-radius: var(--radius-sm);
}

.message.assistant {
  background: var(--surface-primary);
  color: var(--text-primary);
  align-self: flex-start;
  border: 1px solid var(--border-color);
  border-bottom-left-radius: var(--radius-sm);
}

.message.tool {
  background: var(--surface-secondary);
  color: var(--accent-color);
  align-self: center;
  text-align: center;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  max-width: 70%;
  border: 1px solid var(--border-color);
}

.message.error {
  background: var(--error-color);
  color: var(--text-primary);
  align-self: center;
  max-width: 90%;
  border-radius: var(--radius-lg);
}

/* Enhanced Message Formatting */
.message .section-header {
  font-weight: var(--font-weight-bold);
  color: var(--accent-color);
  margin: var(--space-md) 0 var(--space-sm) 0;
  font-size: 1.1em;
}

.message .list-item {
  margin: var(--space-xs) 0;
  padding-left: var(--space-md);
}

.message .list-item.numbered {
  color: var(--text-primary);
}

.message .list-item.bullet {
  color: var(--text-primary);
}

.message code {
  background: var(--surface-secondary);
  color: var(--accent-color);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.message .code-block {
  background: var(--surface-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  overflow-x: auto;
}

.message .code-block pre {
  margin: 0;
  padding: var(--space-md);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.message .code-block code {
  background: none;
  color: var(--text-primary);
  padding: 0;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.message strong {
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
}

.message.status {
  background: var(--surface-secondary);
  color: var(--text-tertiary);
  align-self: center;
  font-size: 0.875rem;
  font-style: italic;
  text-align: center;
  max-width: 70%;
  border: 1px solid var(--border-subtle);
}

/* Streaming cursor removed per user request */

@keyframes pulse {
  0%, 100% { 
    opacity: 1; 
    transform: scale(1);
  }
  50% { 
    opacity: 0.7; 
    transform: scale(1.1);
  }
}

/* Loading Spinner */
.spinner {
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--accent-color);
  border-radius: var(--radius-full);
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Install Prompt */
.install-prompt {
  background: var(--surface-primary);
  color: var(--text-primary);
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  text-align: center;
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
  z-index: 1000;
  box-shadow: var(--shadow-xl);
}

.install-prompt.show {
  transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .header-content {
    position: relative;
  }
  
  /* Keep language selector visible but more compact on mobile */
  .lang-selector-container {
    display: flex !important;
  }
  
  /* Ensure logout button is always visible */
  .logout-btn {
    display: block !important;
    margin-left: var(--space-sm) !important;
  }
  
  /* Stack settings and logout buttons vertically in extreme cases */
  .settings-btn {
    margin-left: var(--space-xs) !important;
  }
  
  .quick-actions {
    padding: 0 var(--space-md);
  }
  
  .quick-action-btn {
    min-width: 100px;
    padding: var(--space-md);
  }
  
  .chat-input-container {
    padding: var(--space-md);
  }
  
  .action-buttons {
    gap: var(--space-sm);
  }
  
  .action-btn span {
    display: none;
  }
  
  .voice-btn {
    width: 44px;
    height: 44px;
  }
  
  /* Sales Order and Delivery Order UI Fixes */
  .action-buttons-container {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: var(--space-md) !important;
  }
  
  .sales-info-card,
  .delivery-info-card {
    min-width: unset !important;
    margin-right: 0 !important;
    margin-bottom: var(--space-sm);
    flex: none !important;
  }
  
  .sales-order-confirm-btn,
  .delivery-order-confirm-btn {
    width: 100% !important;
    justify-content: center !important;
    padding: var(--space-md) var(--space-lg) !important;
    font-size: 16px !important;
    white-space: normal !important;
    text-align: center !important;
  }
  
  .sales-order-confirm-btn span,
  .delivery-order-confirm-btn span {
    display: inline !important;
  }
  
  /* Multiple delivery orders mobile responsiveness */
  .multiple-delivery-orders-container {
    grid-template-columns: 1fr !important;
    gap: var(--space-md) !important;
  }
  
  .delivery-order-card {
    margin-bottom: var(--space-md) !important;
  }
  
  /* Order details text wrapping */
  .sales-info-card div,
  .delivery-info-card div {
    overflow-wrap: break-word;
    word-wrap: break-word;
    hyphens: auto;
  }
}

/* Extra small screens - even more aggressive space saving */
@media (max-width: 480px) {
  .header {
    padding: var(--space-xs) var(--space-sm);
  }
  
  .header-title h1 {
    font-size: 1rem;
  }
  
  /* Hide connection status dot on very small screens */
  .connection-status {
    display: none;
  }
  
  /* Make buttons smaller */
  .menu-btn,
  .logout-btn,
  .settings-btn {
    padding: var(--space-xs);
  }
  
  .menu-btn svg,
  .logout-btn svg,
  .settings-btn svg {
    width: 20px;
    height: 20px;
  }
}

/* iOS Safari Adjustments */
@supports (-webkit-touch-callout: none) {
  .chat-input-container {
    padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
  }
  
  .install-prompt {
    padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-content {
  background: var(--surface-primary);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  border: 1px solid var(--border-color);
}

.loading-content p {
  margin-top: var(--space-md);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
}

/* Message Tails */
.message.user::after {
  content: '';
  position: absolute;
  bottom: -8px;
  right: 12px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid var(--accent-color);
}

.message.assistant::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 12px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid var(--surface-primary);
}

/* Typing indicator removed - now using direct text streaming with cursor */

/* Accessibility */
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  background: var(--surface-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 4px solid var(--success-color);
}

.toast.error {
  border-left: 4px solid var(--error-color);
}

.toast.warning {
  border-left: 4px solid var(--warning-color);
}

/* Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Login Screen Styles */
.login-screen,
.department-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
}

.login-container,
.department-container {
  background: var(--surface-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
}

.login-header,
.department-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.login-header .app-logo {
  margin-bottom: var(--space-lg);
}

.login-header h1,
.department-header h2 {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.login-header p,
.department-header p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.login-form,
.department-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group label {
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  background: var(--surface-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 140, 92, 0.1);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-group select option {
  background: var(--surface-secondary);
  color: var(--text-primary);
}

.primary-btn {
  background: var(--accent-gradient);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  font-weight: var(--font-weight-medium);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.primary-btn:active {
  transform: translateY(0);
}

.primary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.login-error,
.department-error {
  background: rgba(255, 59, 48, 0.1);
  border: 1px solid var(--error-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--error-color);
  font-size: 0.875rem;
  text-align: center;
  margin-top: var(--space-md);
}

/* Responsive Design for Login */
@media (max-width: 480px) {
  .login-container,
  .department-container {
    padding: var(--space-lg);
    margin: var(--space-sm);
  }
  
  .login-header h1,
  .department-header h2 {
    font-size: 1.5rem;
  }
} 

.sales-order-confirm-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #4a8c5c 0%, #2d5a3d 100%);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(74, 140, 92, 0.2);
  margin-top: 12px;
}

.sales-order-confirm-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(74, 140, 92, 0.3);
  background: linear-gradient(135deg, #2d5a3d 0%, #1a3d28 100%);
}

.sales-order-confirm-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(74, 140, 92, 0.2);
}

.sales-order-confirm-btn svg {
  width: 16px;
  height: 16px;
}